x= int(input())
cont=0
if x>= 400 and x<=599:
    cont=8
elif x>= 600 and x<=799:
    cont=7
elif x>= 800 and x<=999:
    cont=6
elif x>= 1000 and x<=1199:
    cont=5
elif x>= 1200 and x<=1399:
    cont=4
elif x>= 1400 and x<=1599:
    cont=3
elif x>= 1600 and x<=1799:
    cont=2
elif x>= 1800 and x<=1999:
    cont=1
print(cont) x= int(input()) x int(input()) int input() input cont=0 cont 0 if x>= 400 and x<=599:
    cont=8
elif x>= 600 and x<=799:
    cont=7
elif x>= 800 and x<=999:
    cont=6
elif x>= 1000 and x<=1199:
    cont=5
elif x>= 1200 and x<=1399:
    cont=4
elif x>= 1400 and x<=1599:
    cont=3
elif x>= 1600 and x<=1799:
    cont=2
elif x>= 1800 and x<=1999:
    cont=1 x>= 400 and x<=599 x>= 400 x 400 x<=599 x 599 cont=8 cont 8 elif x>= 600 and x<=799:
    cont=7 x>= 600 and x<=799 x>= 600 x 600 x<=799 x 799 cont=7 cont 7 elif x>= 800 and x<=999:
    cont=6 x>= 800 and x<=999 x>= 800 x 800 x<=999 x 999 cont=6 cont 6 elif x>= 1000 and x<=1199:
    cont=5 x>= 1000 and x<=1199 x>= 1000 x 1000 x<=1199 x 1199 cont=5 cont 5 elif x>= 1200 and x<=1399:
    cont=4 x>= 1200 and x<=1399 x>= 1200 x 1200 x<=1399 x 1399 cont=4 cont 4 elif x>= 1400 and x<=1599:
    cont=3 x>= 1400 and x<=1599 x>= 1400 x 1400 x<=1599 x 1599 cont=3 cont 3 elif x>= 1600 and x<=1799:
    cont=2 x>= 1600 and x<=1799 x>= 1600 x 1600 x<=1799 x 1799 cont=2 cont 2 elif x>= 1800 and x<=1999:
    cont=1 x>= 1800 and x<=1999 x>= 1800 x 1800 x<=1999 x 1999 cont=1 cont 1 print(cont) print cont cont=6 6 cont cont=8 8 cont cont=1 1 cont x= int(input()) int(input()) x cont=5 5 cont cont=3 3 cont cont=4 4 cont cont=2 2 cont cont=0 0 cont cont=7 7 cont
x= int(input())
cont=0
if x>= 400 and x<=599:
    cont=8
elif x>= 600 and x<=799:
    cont=7
elif x>= 800 and x<=999:
    cont=6
elif x>= 1000 and x<=1199:
    cont=5
elif x>= 1200 and x<=1399:
    cont=4
elif x>= 1400 and x<=1599:
    cont=3
elif x>= 1600 and x<=1799:
    cont=2
elif x>= 1800 and x<=1999:
    cont=1
print(cont)